#include <stdio.h>
#include <graphics.h>
/* line    */

main()
{
    int driver,mode,i;
    float x0,y0,y1,x1;
    float j=12,k;
    driver=VGA;mode=VGAHI;
    initgraph(&driver,&mode,"");
    setbkcolor(GREEN);
    x0=263;y0=263;y1=275;x1=275;
    for(i=0;i<=18;i++)
    {
    setcolor(5);
    line(x0,y0,x0,y1);
    x0=x0-5;
    y0=y0-5;
    x1=x1+5;
    y1=y1+5;
    j=j+10;
    }
x0=263;y1=275;y0=263;
for(i=0;i<=20;i++)
    {
    setcolor(5);   
    line(x0,y0,x0,y1);
    x0=x0+5;
    y0=y0+5;
    y1=y1-5;
    }
}